The Mets and Angels are set for a three-game series starting Monday at Citi Field, with key points including Francisco Alvarez’s return after a strong stint in Triple-A, the center field dilemma, and the need for the starting rotation to provide length. The Angels have a potent offense led by Mike Trout and Jo Adell but struggle with pitching, facing the Mets’ hurlers Kodai Senga, Frankie Montas, and Sean Manaea.
